Shundong Guan

Tsinghua University

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Xiuli Fu

Beijing University of Posts and Telecommunications

Zhijian Peng

China University of Geosciences (Beijing)

Kaihua Wen

State Key Laboratory of New Ceramics and Fine Processing

Liangliang Li

Zhejiang University of Science and Technology

Sijie Liu

Tsinghua University

Ce‐Wen Nan

Tsinghua University

Xinbin Wu

Shandong University

Chuanjiao Xue

State Key Laboratory of New Ceramics and Fine Processing

Ying Liang

Tsinghua University

Zheng Zhang

Changchun University of Technology

Cooperative Institutions

Tsinghua University

State Key Laboratory of New Ceramics and Fine Processing

China University of Geosciences (Beijing)

Beijing University of Posts and Telecommunications

Chinese Academy of Sciences

Shanghai Jiao Tong University

Zhejiang University

University of Chinese Academy of Sciences

Central South University

Materials Science & Engineering

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Balancing oxygen evolution reaction and oxygen reduction reaction processes in Li–O2 batteries through tuning the bond distances of RuO2

Composites Part B Engineering (2022)

Xinbin Wu Wei Yu Wei Xu Yujun Zhang Shundong Guan

Oxygen evolution

10.1016/j.compositesb.2022.109727

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Citations (11)

Alloying Enhanced Supercapacitor Performance Based on Oxygen-Deficient Tin Oxide Nanorod Array Electrodes

ACS Applied Energy Materials (2020)

Qi Wang Ye Tian Shundong Guan Zhijian Peng Xiuli Fu

Tin dioxide (SnO2) nanostructures are potential, excellent candidates for pseudocapacitive electrodes. However, the performances are seriously limited by their low electrical conductivities. Here, we report a product of homogeneous, ordered, partially Ni–Sn alloyed, and oxygen-deficient tin oxide nanorod array on Ni foam, which was fabricated by an easy solvothermal synthesis method followed by facile thermal treatment in a safe reductive atmosphere. Such a product can directly be applied as the electrode of supercapacitors. With an increasing degree of alloying, the electrochemical behavior of the electrodes is controlled from pseudocapacitive to battery-type energy storage mechanism. The recorded maximum specific capacitance at a significantly large current density of 5 A·g–1 could reach 101.1 mAh·g–1 (or 652 F·g–1), a quite high value in battery-type supercapacitors and also very large one in tin oxide-based pseudocapacitors. More astonishingly, the optimal electrode will possess a dramatically enhanced specific capacitance after long-time charge–discharge cycling, attaining 11.4 times higher than its original value after cycling for 4000 times at 25 A·g–1, showing very excellent durability. Therefore, the present methodology would provide a simple, feasible, and safe strategy of fabricating various metal oxide-based electrodes for high-performance supercapacitors.

Pseudocapacitor

Nanorod

Tin oxide

10.1021/acsaem.0c02266

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Citations (15)

Novel β-NiS film modified CdS nanoflowers heterostructure nanocomposite: Extraordinarily highly efficient photocatalysts for hydrogen evolution

Applied Catalysis B Environment and Energy (2017)

Yu Zhang Zhijian Peng Shundong Guan Xiuli Fu

Visible spectrum

10.1016/j.apcatb.2017.11.043

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Citations (79)

A Cross-Linked Poly(Ethylene Oxide)-Based Electrolyte for All-Solid-State Lithium Metal Batteries With Long Cycling Stability

Frontiers in Materials (2022)

Chengzhou Xin Kaihua Wen Shundong Guan Chuanjiao Xue Xinbin Wu

A cross-linked poly(ethylene oxide) (PEO)-based electrolyte with polyaryl polymethylene isocyanate (PAPI) as the cross-linking agent is synthesized by a facile one-pot reaction. The PEO chains are cross-linked by PAPI through the reaction between hydroxyl groups (−OH) and isocyanate groups (−N=C=O). The effects of PAPI on the electrochemical performance of the PEO-based electrolyte and the stability of the electrolyte/electrode interface are investigated. The PEO–PAPI electrolyte has an ionic conductivity of 9.3 × 10 –5 −1.3 × 10 –4 S cm −1 at 60°C. The cross-linked PEO–PAPI electrolyte exhibits enhanced mechanical properties compared to pristine PEO and shows good compatibility with a lithium (Li) metal anode. An all-solid-state Li metal battery (ASSLMB) with the optimized PEO–PAPI electrolyte and a LiFePO 4 cathode (1.62 mg cm −2 in mass loading) shows a discharge capacity of 112.8 mAh g −1 after 700 cycles with a current density of 88 μA cm −2 at 60°C. Even with a high mass loading of 8.4 mg cm −2 , the ASSLMB with the cross-linked PEO-based electrolyte shows a good cycle performance. The experimental data show that the cross-linked PEO–PAPI electrolyte is a promising candidate for solid electrolytes used in ASSLMBs.

Isocyanate

10.3389/fmats.2022.864478

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Citations (22)

Significantly improved interface between PVDF-based polymer electrolyte and lithium metal via thermal-electrochemical treatment

Energy storage materials (2022)

Chuanjiao Xue Shundong Guan Bingkun Hu Xinzhi Wang Chengzhou Xin

Thermal Stability

Electrochemical cell

10.1016/j.ensm.2022.01.034

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Citations (37)

Pr-doped NiCoP nanowire arrays for efficient hydrogen evolution in both acidic and alkaline media

Journal of Alloys and Compounds (2020)

Yu Zhang Keke Xu Bo Zhang Shundong Guan Xiuli Fu

Overpotential

Praseodymium

10.1016/j.jallcom.2020.158047

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Citations (16)

A Valence Gradient Protective Layer for Dendrite‐Free and Highly Stable Lithium Metal Anodes

Advanced Energy Materials (2022)

Zheng Zhang Shundong Guan Sijie Liu Bingkun Hu Chuanjiao Xue

Abstract Li metal is the next‐generation anode material for high‐energy‐density Li‐ion batteries. Unfortunately, its practical application is hampered by drawbacks such as an unstable solid electrolyte interphase and undesirable Li dendrites. Herein, an Fe‐based protective layer with a valence gradient is constructed on Li anodes, which consists of an Fe 3+ /Fe 2+ ‐rich outer layer and an Fe 0 ‐containing inner layer. The protective layer not only isolates the underlying Li metal from the corrosive carbonate electrolyte, but also uniformly stores Li during plating and inhibits the growth of Li dendrites. The Li anode with the Fe‐based protective layer shows dendrite‐free Li plating/stripping behaviors; therefore, Li symmetric cells stably run for 1000 h at 1 mA cm ‐2 and 1 mA h cm ‐2 and even survive for 380 h at an ultra‐high capacity of 30 mA h cm ‐2 . With such a highly stable Li anode, LiFePO 4 cells operate steadily for 1600 and 1000 cycles at 1 and 5 C, respectively. High‐loading LiCoO 2 cells also present excellent cycling stability and rate capability, proving the advantages of the protective layer in Li anode protection.

Lithium metal

Interphase

Dendrite (mathematics)

Plating (geology)

10.1002/aenm.202103332

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Citations (39)

Data on the synthesis processes optimization of novel β-NiS film modified CdS nanoflowers heterostructure nanocomposite for photocatalytic hydrogen evolution

Data in Brief (2017)

Yu Zhang Zhijian Peng Shundong Guan Xiuli Fu

The data presented in this article are related to a research article entitled 'Novel β-NiS film modified CdS nanoflowers heterostructure nanocomposite: extraordinarily highly efficient photocatalysts for hydrogen evolution' (Zhang et al., 2018) [1]. In this article, we report original data on the synthesis processes optimization of the proposed nanocomposite on the basis of their optimum photocatalytic performance together with the comparison on the results of literatures and comparative experiments. The composition, microstructure, morphology, photocatalytic hydrogen evolution and photocatalytic stability of the corresponding samples are included in this report. The data are presented in this format in order to facilitate comparison with data from other researchers in the field and understanding the mechanism of similar catalysts.

10.1016/j.dib.2017.12.016

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Citations (8)

An organic additive assisting with high ionic conduction and dendrite resistance of polymer electrolytes

Journal of Materials Chemistry A (2022)

Shundong Guan Kaihua Wen Ying Liang Chuanjiao Xue Sijie Liu

2-Acrylamido-2-methylpropane sulfonic acid (AMPS) is used as an organic additive for poly(vinylidene fluoride) (PVDF)-based polymer electrolytes to assist with the fast Li-ion conduction and formation of a stable interface.

Polymer Electrolytes

Dendrite (mathematics)

10.1039/d2ta04229k

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Citations (13)

AuAg@CdS double-walled nanotubes: synthesis and nonlinear absorption properties

Nanoscale (2017)

Shundong Guan Xiuli Fu Ying Tang Zhijian Peng

Normalized experimental (individual data points) and theoretically fitted (lines of best fit) open-aperture Z-scan transmittances of AuAg@CdS double wall nanotubes at different excitation intensities.

10.1039/c7nr02861j

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Citations (9)